Finding the Fourth Proportional to 281,009,798.88, 387,798,113.57 and 153,848,355.75
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Solution
The fourth proportional to 281,009,798.88, 387,798,113.57 and 153,848,355.75 is: 212,313,244.49
Step by Step Solution
- Step 1: Write the proportion equation
281,009,798.88 : 387,798,113.57 = 153,848,355.75 : x - Step 2: Convert to fraction form
281,009,798.88/387,798,113.57 = 153,848,355.75/x - Step 3: Cross multiply
281,009,798.88x = 387,798,113.57 × 153,848,355.75 - Step 4: Simplify right side
281,009,798.88x = 59,662,102,134,927,024 - Step 5: Solve for x
x = 59,662,102,134,927,024/281,009,798.88 - Step 6: Final answer
x = 212,313,244.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.